Trishelle Cannatella may have been a part of the most infamous hookup in Real World history (the hot tub scene with Stephen Hill and Brynn Smith, to be exact) -- but those days are officially (way) behind the MTV star: The Challenge vet is happily engaged!

The Southern belle -- who we last saw as she voluntarily exitedRivals 2 in Thailand -- just shared her exciting, life-changing news in a series of tweets. First up, the big reveal -- with a bit of humor for good measure: